oh! That's kinda surprising, wasd shouldn't work different than arrow keys at all, can I ask you which browser/os you are on?
Thanks for the comment though :)
Alright, my computer must have been suffering yesterday or something. I just tried it again and now it works fine, that's with both the minimized window and with it fullscreen. Must have been some weird lag on my end then. I'm on Mozilla Firefox so could be a factor too but I tried it on the same browser. Whoops xD